Functional Description
EBC2
Page 2 - 26
© 2005 Kontron Modular Computers GmbH
ID 29022, Rev. 01
26873
.02.VC.050120/135426
P R E L I M I N A R Y
2.3.4.1
Gigabit Ethernet Interface
The E²Brain™ modules provide up to two three speed Ethernet (GMII) interfaces (TSEC1 and
TSEC2) whose signals are already at TTL level. The EBC2 carrier board provides the PHY,
galvanic isolation (magnetics) function, and the appropriate connector type for each Ethernet
interface.
2.3.5
Monitor and Control (M/C)
Monitor and Control functions are divided essentially into Pre-operation and Operation. Pre-op-
eration M/C deals with board configuration and system requirements. Operation M/C covers di-
rect operational interfaces.
2.3.5.1
Pre-Operation M/C
Pre-operation M/C is a direct function of the application and the system requirements. These
requirements dictate the EBC2 configuration as well as the overall system integration. Overall
system integration and compliance with its requirements is beyond the scope of this manual.
2.3.5.2
Operation M/C
Operation M/C is primarily a function of the E²Brain™ module driver software and the application.
M/C signals are available, and, if implemented as part of the application, the operator as well as
application software has access to these functions.
Table 2-19: Gigabit Ethernet Signal Type and Description
SIGNAL
I/O
DESCRIPTION
TSECn_COL
I
Collision
TSECn_CRS
I
Carrier sense
TSECn_GTX_CLK
O
Transmit clock
EC_GTX_CLK125
I
Oscillator source for GMII
EC_MDC
O
Management clock
EC_MDIO
I/O
Management data
TSECn_RX_CLK
I
Receive clock
TSECn_RX_DV
I
Receive data valid
TSECn_RXD[7:0]
I
Receive data bits 7:0
TSECn_RX_ER
I
Receive error
TSECn_TX_CLK
I
Transmit clock
TSECn_TXD[7:0]
O
Transmit data bits 7:0
TSECn_TX_EN
O
Transmit data valid
TSECn_TX_ER
O
Transmit error
